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Ethanol's effects on cars

U.S. Sen. Mark Dayton is traveling around southern Minnesota this week in his ethanol-powered Ford Explorer, continuing his push for alternative fuels. He recently introduced legislation that would require all new vehicles sold in the country to have flexible-fuel engines, which can run on either E85 or regular gasoline. MPR's Cathy Wurzer spoke with Paul Brand, an automotive expert for KSTP radio.